Insulator.



E. D. HARRIS.

INSULATOR.

APPLICATION FILED API1.25. 1914.

PIII-enfedAug. 24,1915.

IM/vamo@ WL'nDHarrs,

wiftmeooao UNITED STATES PATENT OFFICE.

EDWIN D. HARRIS, 0F SYCAIVIORE, ILLINOIS, ASSIGNOR OF ONE-HALF T0 ARTHUR Ai MUELLER, 0F SYCAMORE, ILLINOIS.

INSULATOR.

specification of Letters Patent.

Patented Aug. 24, 1915.

Application filed April 25, 1914. Serial No. 834,403.

To all whom 'it may concern:

Be it known that I, EDWIN D. HARRIS, a citizen of the United States of America, residing at Sycamore, in the county of Dekalb and State of Illinois, have invented new and useful Improvements in Insulators, of which the following is a specification. I

This invention relates to improvements in insulators and has particular application to an insulator wherein the use of tie wires and the like will be eliminated.

In carrying out the present invention, it is my purpose to provide an insulator of the class described whereby electric current carrying conductors may be supported upon poles and the like and insulated therefrom without the use of tie wires or the like.

It is also my purpose to provide an insulator which will hold the wires securely and effectively, which may be readily and quickly connected with the wire and which may be manufactured and marketed at a minimum expense.

With the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claims.

In the accompanying drawings; Figure 1 is a view in elevation of an insulator constructed in accordance with the present invention. Fig. 2 is a vertical central sectional view therethrough. Fig. 3 is a top plan view thereof.

Referring now to the drawings in detail, 1 designates the body of an insulator which, in the present instance, is circular in cross section and has one end thereof formed with a threaded bore 2 adapted to receive a pin carried by the cross arm of the pole or similar support. Formed in the body 1 adjacent to the upper end thereof is a substantially V-shaped slot 3 opening onto the side of the body and preferably inclined upwardly, while contiguous the bottom wall of the slot 3 and communicating therewith is a groove 4 having the side wall thereof connected with the lower wall of the groove forming a shoulder 5. Formed in the body 1 coaxial therewith is a bore 6 having one end thereof opening onto thetop of the body and the lower end merging into the groove 4 at the apex of the slot 3 and communicating with a passage 7 formed Ain the body at right angles to the bore 6 and opening onto the side wall of the body at a point behind the apex of the slot 3. The passage 7 is preferably inclined downwardly to facilitate drainage, while the top and bottom walls of the slot 3 are formed with alining grooves 7', 7 merging into the apex of the groove to receive a tool.

In practice, the wire is placed in the mouth of the slot 3 and a tool employed to force the portion of the wire within the slot 3 over the lower wall of such slot so that such portion of the wire will conform to the configuration of the slot. Then the apeX of the V-shaped portion of the wire is disposed within the bore 6 a tool is passed into the latter thereby forcing the wire into the groove 4 and behind the shoulder 5. Thus, the wire is securely held within the slot and the use of tie wires and the like eliminated. When it is desired to release the wire a tool is inserted into the passage 7 to elevate the wire out of the groove 4 and beyond the shoulder 5 whereby the wire may be readily slipped out of the slot 3.

From the foregoing description taken in connection with the accompanying drawings, the construction, mode of operation and manner of employing my invention will be readily apparent. It will be seen that I have provided an insulator whereby electric current carrying conductors and the like will be securely held in position without the use of tie wires and analogous devices and whereby the wire may be readily connected with and disconnected from the insulator.

I claim:

1. An insulator comprising a body having a substantially V-shaped slot formed therein and opening onto the side thereof, and a groove contiguous the bottom wall of the slot and communicating with the latter whereby a shoulder is formed to hold the wire, said body being further formed with a bore coaxial therewith and opening onto the upper end thereof whereby access may be yhad to the wire to press it over said shoulder.

2. An insulator comprising a bodyhaving a substantially il-shaped slot formed therein and opening onto the side thereof, and a groove contiguous the bottom wall of the slot and communicating with the latter whereby a shoulder is formed to hold the wire, said body being further formed with a bore coaxial therewith and opening onto the In testimony whereof I ax my signature upper end thereof whereby the Wire may be in presence of two Witnesses. passed over said shoulder, and With a pas- EDWIN D. HARRIS. sage communicating with said groove Where- Witnesses: E1 by access may be had to the Wire to lift it CARL W. HEIDEKLANG, off of seid shoulder. JosEPI-I E. JOHNSON.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente, Washington, If, G." 

